diff --git a/src/pudl/package_data/eia923/column_maps/boiler_fuel.csv b/src/pudl/package_data/eia923/column_maps/boiler_fuel.csv
index 6f8ba8f4e9..cb20dd38db 100644
--- a/src/pudl/package_data/eia923/column_maps/boiler_fuel.csv
+++ b/src/pudl/package_data/eia923/column_maps/boiler_fuel.csv
@@ -1,9 +1,9 @@
 year_index,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021
 plant_id_eia,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id
-combined_heat_power,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant
+associated_combined_heat_power,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant
 plant_name_eia,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name
-operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
-operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
+utility_name_eia,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
+utility_id_eia,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
 plant_state,state,state,state,state,plant_state,state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state
 census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region
 nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region
diff --git a/src/pudl/package_data/eia923/column_maps/fuel_receipts_costs.csv b/src/pudl/package_data/eia923/column_maps/fuel_receipts_costs.csv
index 6e6b264f83..f6b25ef65e 100644
--- a/src/pudl/package_data/eia923/column_maps/fuel_receipts_costs.csv
+++ b/src/pudl/package_data/eia923/column_maps/fuel_receipts_costs.csv
@@ -21,8 +21,8 @@ ash_content_pct,average_ash_content,average_ash_content,average_ash_content,aver
 mercury_content_ppm,,,,,average_mercury_content,,average_mercury_content,average_mercury_content,average_mercury_content,average_mercury_content,average_mercury_content,average_mercury_content,average_mercury_content,average_mercury_content
 fuel_cost_per_mmbtu,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost,fuel_cost
 regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated,regulated
-operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
-operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
+utility_name_eia,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
+utility_id_eia,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
 reporting_frequency_code,respondent_frequency,respondent_frequency,respondent_frequency,respondent_frequency,reporting_frequency,respondent_frequency,reporting_frequency,reporting_frequency,reporting_frequency,reporting_frequency,reporting_frequency,reporting_frequency,reporting_frequency,reporting_frequency
 primary_transportation_mode_code,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode,primary_transportation_mode
 secondary_transportation_mode_code,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode,secondary_transportation_mode
diff --git a/src/pudl/package_data/eia923/column_maps/generation_fuel.csv b/src/pudl/package_data/eia923/column_maps/generation_fuel.csv
index 4def3915bf..2fe4bfaadc 100644
--- a/src/pudl/package_data/eia923/column_maps/generation_fuel.csv
+++ b/src/pudl/package_data/eia923/column_maps/generation_fuel.csv
@@ -3,8 +3,8 @@ plant_id_eia,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plan
 combined_heat_power,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant
 nuclear_unit_id,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_i_d,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id,nuclear_unit_id
 plant_name_eia,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name
-operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
-operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
+utility_name_eia,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
+utility_id_eia,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
 plant_state,state,state,state,state,state,state,state,state,state,state,state,plant_state,state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state
 census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region
 nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region
diff --git a/src/pudl/package_data/eia923/column_maps/generator.csv b/src/pudl/package_data/eia923/column_maps/generator.csv
index 949eb9f18f..a51008560b 100644
--- a/src/pudl/package_data/eia923/column_maps/generator.csv
+++ b/src/pudl/package_data/eia923/column_maps/generator.csv
@@ -2,8 +2,8 @@ year_index,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021
 plant_id_eia,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id,plant_id
 combined_heat_power,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant,combined_heat_and_power_plant
 plant_name_eia,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name,plant_name
-operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
-operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
+utility_name_eia,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name,operator_name
+utility_id_eia,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id,operator_id
 plant_state,state,state,state,state,plant_state,state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state,plant_state
 census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region,census_region
 nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region,nerc_region
diff --git a/src/pudl/transform/eia923.py b/src/pudl/transform/eia923.py
index 4eff62eb7f..279b89eee8 100644
--- a/src/pudl/transform/eia923.py
+++ b/src/pudl/transform/eia923.py
@@ -618,21 +618,12 @@ def clean_generation_fuel_eia923(raw_generation_fuel_eia923: pd.DataFrame):
 
     # Drop fields we're not inserting into the generation_fuel_eia923 table.
     cols_to_drop = [
-        "combined_heat_power",
-        "plant_name_eia",
-        "operator_name",
-        "operator_id",
-        "plant_state",
-        "census_region",
-        "nerc_region",
-        "naics_code",
         "fuel_unit",
         "total_fuel_consumption_quantity",
         "electric_fuel_consumption_quantity",
         "total_fuel_consumption_mmbtu",
         "elec_fuel_consumption_mmbtu",
         "net_generation_megawatthours",
-        "early_release",
     ]
     gen_fuel.drop(cols_to_drop, axis=1, inplace=True)
 
@@ -764,7 +755,15 @@ def _aggregate_duplicate_boiler_fuel_keys(boiler_fuel_df: pd.DataFrame) -> pd.Da
         quantity_cols
         + relative_cols
         + key_cols
-        + ["prime_mover_code", "sector_id_eia", "sector_name_eia"]
+        + [
+            "prime_mover_code",
+            "sector_id_eia",
+            "sector_name_eia",
+            "total_fuel_consumption_quantity",
+            "balancing_authority_code_eia",
+            "early_release",
+            "reporting_frequency_code",
+        ]
     )
     actual_cols = set(boiler_fuel_df.columns)
     difference = actual_cols.symmetric_difference(expected_cols)
@@ -830,19 +829,7 @@ def clean_boiler_fuel_eia923(raw_boiler_fuel_eia923: pd.DataFrame) -> pd.DataFra
     # Need to stop dropping fields that contain harvestable entity attributes.
     # See https://github.com/catalyst-cooperative/pudl/issues/509
     cols_to_drop = [
-        "combined_heat_power",
-        "plant_name_eia",
-        "operator_name",
-        "operator_id",
-        "plant_state",
-        "census_region",
-        "nerc_region",
-        "naics_code",
         "fuel_unit",
-        "total_fuel_consumption_quantity",
-        "balancing_authority_code_eia",
-        "early_release",
-        "reporting_frequency_code",
         "data_maturity",
     ]
     bf_df.drop(cols_to_drop, axis=1, inplace=True)
@@ -947,21 +934,6 @@ def clean_generation_eia923(raw_generator_eia923: pd.DataFrame) -> pd.DataFrame:
     """
     gen_df = (
         raw_generator_eia923.dropna(subset=["generator_id"])
-        .drop(
-            [
-                "combined_heat_power",
-                "plant_name_eia",
-                "operator_name",
-                "operator_id",
-                "plant_state",
-                "census_region",
-                "nerc_region",
-                "naics_code",
-                "net_generation_mwh_year_to_date",
-                "early_release",
-            ],
-            axis="columns",
-        )
         .pipe(_yearly_to_monthly_records)
         .pipe(pudl.helpers.fix_eia_na)
         .pipe(pudl.helpers.convert_to_date)
@@ -1101,10 +1073,6 @@ def clean_fuel_receipts_costs_eia923(
     # Drop fields we're not inserting into the fuel_receipts_costs_eia923
     # table.
     cols_to_drop = [
-        "plant_name_eia",
-        "plant_state",
-        "operator_name",
-        "operator_id",
         "mine_id_msha",
         "mine_type_code",
         "state",
@@ -1112,7 +1080,6 @@ def clean_fuel_receipts_costs_eia923(
         "state_id_fips",
         "mine_name",
         "regulated",
-        "early_release",
     ]
 
     cmi_df = (